Burnishing-machine.



S. F. ANDERSON. BURNISHING .MAGHINB.

APPLICATION FILED 001'. 7, 1909.

987,940. Patented Mar. 28, 1911.-

4 SHEETS-SHEET 1.

S. F. ANDERSON.

BURNISHING MACHINE.

APPLIOATION FILED OCT. 7, 1909.

Patented Mar.28, 1911.

4 SHEETS-SHEET 2,

diz/

S. F. ANDERSON.

BURNISHING MACHINE.

APPLICATION FILED 0011, 1909 987,940. Patented Mar.28, 1911.

4 SHEETS-SHEET 3.

S P. ANDERSON.

Patented Mar.28, 1911.

w QM @19 s 3 w P-\\\ w -1 1 1 a 1 Jizufu/z/ GAL/A06 UNITED STATES PATENT OFFICE.

SWAN F. ANDERSON, OF ROCKFORD, ILLINOIS, ASSIGNOB. 'IO ROCKFORD TOOL COMPANY,

' OF ROCKFORD, ILLINOIS, A CORPORATION OF ILLINOIS.

BURNISHING-MACHINE.

Specification of Letters Patent. Patented Mar. 28, 1911.

Application filed October 7, 1909. Serial No. 521,626.

To all whom it may concern:

Be it known that I, SWAN F. ANDERSON,

a citizen of the United 'States, residing at fication.

in connection therewith.

The object of this invention is to construct a machine for polishing woodwork and especiall furniture.

In t accompanying drawings. Figure 1 1s a persppctive view of my improved polishlng mac ine. Fig. 2 is a vertical section on dotted line a a Fig. 3. Fig. 3 is a horizontal longitudinal sectional view. Fig. 4 is a section on dotted line a c Fig. 2. Fig. 5 is a section on dotted line (1 d Fig. 2. Fig. 6 is a section on dottedline e e F1 1. Figs. 7, 8 and 9 are representations 0 the valve casing. 10 is a "plan view of the gear connection etween the rubbers. Fig. 11 is a perspective view of one of the racks and its guide. Fig. 12 is a perspective view of the base portion. Figs. 13 and 14 are perspective views of the holders for the yielding rubbing surfaces. Fi 15 is a section on dotted line f f Fi 4. Fi 16 is a section on dotted'line g F ig. 4. ig. 17 is a section on dotted ine b h Fi 4 Fig. 18 is a section on dotted-line z 2' Fig. 4. Flg. 19 is a section on dotted line 7' j Fig. 4. Fig. 20 is a section on dotted line In lcFi 4.

The base portion of the urnisher comprises the plate 1 having a cylinder 2 supported on its up er face. Th1s c linder has a screw-threaded extension 3 an a tubular handle 4 is held in connection with the extension. The ends of the cylinder are internally screw-threaded and lugs 5 are turned ithin the cylinder is located a iston 6 having a rack 7 formed integraLt erewith.

The base 1 has depending sides -8 which receive'guideways 9 and 10 connected to a plate 11. Screws 12 connect the sides to the guide-ways. Plates 13 are secured to the ends of the guide-ways and form ends to the depending sldes 8. The guide-ways 9 and 10 have one-end 14 and 15 respectively of each, closed as shown at Fig. 12, and communicate with each other through the central recessed portion 16.

A stud 17 has its lower end inserted throughan opening in the plate 1 and in h the central section connecting the two guide.- ways, the upfper end of this stud is seated in a recess 18 ormed in the u per portion of the cylinder 2, and is held 1n place by the nut 19. Around this stud is located a spur pinion 20 with which the rack 7 of the in- 1on meshes. This pinion is of a le t to fill the space between the bottom of t e recess 16 and the upper inner face of the cylinder.

In the guide-ways 9 and 10 are located guides 21 and 22 respectively, and each is ormed with arack 23 and 24 respectively which mesh with the spur pinioni 20. To each guide 9 and 10 are secured plates 25 and 26 respectively which are located in cut-away portions 27 and 28 of the guide ways above the plate 11. These plates 25 and 26 extend laterally beyond the depending sides of the base, and have pad holders connected thereto. These holders comprise two plates 29 and 30, each having teeth 31 extending alon one edge and the plate 29 having screw-t readed bosses 32.

ad 33 has its ed es turned over and engagmg. the teeth, an the top plate 34 has openings 35 throughwhich t e bosses extend, and is located over the turned over edges of the pad and connected to the plate 29 by 'moved against the guides by the screws 38.

"'" As the iston 6 is moved back and forth the rack carried thereby will rotate the spur-pinion 20 first in one direction and t on n the opposite direction. When the pinion is rotated in one direction, the racks 23 and 24 carrying the felt pads willbc moved toward one another, and when moved in the opposite direction the will be moved away from one another. T ese movements of the pads will allow the base, cylinder and handle to remain at rest until the burnisher as a' whole is moved by the attendant. The means employed to automaticall reciprocate the plston will now be descri ed.

To the cylinder midwayof its length is formed an enlargement 39 which has a vertical opening 40 within which is located a shell 41 havinga central slot 42 and two end slots 43 and 44. Beneath this shell is 10 cated a washer 45 having a cut-away portion 46. A washer 47 is ocated on the upper end of the shell and has a cut-away portion-48 coinciding with the cut-away portion cylinder and with the cut-away portions 48 and 49. A ort 60 connects with the in- A 49 of the upper end of the shell. A cap50 1' has a depending tubular portion -which is located in the opening 40 andover the washer 47. Screws 51 connect the cap 50 with the enlargement 39 of the cylinder. A port 52 connects the tubular handle 4 with the slot 47 A port 53 connects the slot 43 with one end of the cylinder. A port 54 connects the slot 44 with the other end of the cylinder. A port 55 connects the re-- duced portion 56 of the opening 40 with the interior of the cylinder near its 'center and beneath the rack 7 in order that it may communicate with the space between, the ends of the piston. A port 57 connects the opening 58 in the tubular portion of the cap 50 with the interior of the cylinder near the center of its length and above: the rack 7 in order that communication may be had with the space between the heads of the piston. ort 59 connects with the interior of the terior of'the cy inder and with the cut-away portion 46 of the washer 45. Within the shell 41 is located a rod 61 supporting two rings 62 and 63, and the slot 42 of the shell 41 is located between these rings. This rod with attached rings act as vaives to direct the air under ressure .to the ends of the 'piston and to t e exhaust ports. With the piston in the position shown in Figs. and 3, and the valve in the position shown at Fi 4, air is admitted through the handle an .by the port 52 into the space between the rings'62 and 63 of the valve. The port 53 will also be exposed between the rings. 62 and 63 whichjwill allow the air to pass from the port 52 into the port 53 and to one end of the piston. At Fig. 3 the piston is shown at the extreme end of itsmovementin which the end of the port 53 is closed by the piston, but the piston will not stand at rest in this position, as the air. which is trapped between the end of the piston and plug 5, will'be com ressed, which will force the piston back' su cientto expose the end of the port 53. .The force of the air will then move the piston toward the other end of the cylinder thereby rotating the spur pinion 20 and moving the burmsher pads.

The exhaust at the other end of the piston will pass by way of the opening 58 into the port 57 which communicates'with the space around the spur pinion 20, and downward through the moving parts around the guides and escape in all directions. When the piston has moved s. as to uncover the port 60', the air pressure will be directed through, this port into the cut-away portion 46Tof the washer 45, and upward against the lower end of the ring 63 of the va1vefl,which will raise the valve so that the ring 63 will be between the slots 43 and 44, and the ring 62 will be above the slot'44, in order that the ports 52 and 54 may be in communication, and the ports 53 and 55 be in. commumcation. The air entering by way of the port ton will pass by way of the ports 53 and 55 into the space around the ,spur pinion and escape around the moving parts in all directions. When the port 59 is uncovered, the air will pass through it into the cutaway portions 48 and 49, and against the upper end of the ring 62, which will force the valve down into the position shown at Fig. 4, when the operations will be repeated. Each time the piston is moved in one direction, the pads will be moved toward one another and when the piston is moved in the opposite direction, the pads will be separated. These movements of the pads will allow the handle portion and cylinder to remain at rest so far as bodily movement is concerned until moved by the attendant.

The exhaust air will keep all the joints clear of dust and will also keep the material being burnished clearof dust.

I claim as my invention. 1. In aburnishi'ng machine, the combination of a cylinder, a piston within the cylin-- der provided with a rack, two devices each provided'with a rack, a spur-pinion in mesh wlth the three racks, and valve arrange ments and ports for im arting a reciproeating movement to the plston.

2. In a machine of the character set forth,' the combination with a support, of a single cylinder'mounted thereon, a single recipro: catory piston located and o eratingin the cylinder, oppositely moving evi'ces mounted on the support, and means for transmitting motion from the piston to the devices to affect their simultaneous movement in opposite directions. 1

3. In a burnishing machine, the'combinationof a cylinder, a piston within the cylinder comprising two heads and a rack connecting the heads, two. racks, a device connected to each rack, a guide-way for each of two last mentioned racks, a spur pinion meshing withthe three racks and valve arrangements and ports for imparting a recip rocating movement to the piston.-

4. In a machine of the character set forth,

'the combination with a base, of a ,single cylinder mounted thereon, a 'singlereciproca- I tory piston located andoperating in the cyl inder, oppositely moving devices mounted on the base, and a rotary member geared to the single piston and to both of the devices for operating the latter.

5. In a machine of the character setforth, the combination with a support, of a cylinder mounted thereon a reciprocatory piston operating in the cylinder and having a llll lack, a rotary member geared to the rack, 21 reciprocatory device, and means for effecting the reciprocation of the device on the rotation of the member.

6. In a machine of the character set forth, the combination with a support, of a cylinder mounted thereon, a reciprocatory piston operating in the cylinder, a rotary gear operated by the piston, and a reciprocatory device having a rack meshing withthe gear.

7. In a machine of the character set forth, the combination with a base support, of a cylinder mounted thereon, a reciprocatory piston operating in the cylinder and having a rack, a rotary member geared to the rack, and a pair of reciprocatory devices having racks geared to the rotary member and simultaneously operating in opposite directions.

8. In a machine of the character set forth, the combination with a base having an internal guideway, of a reciprocatory member mounted in the guideway and projecting beyond the sides of the base, a device secured to the projecting portions of the member and extending beneath the base, and means for reciprocating the member and the device.

9. In a machine of the character set forth, the combination with a base having internal guideways, and cut-away portions, of reciprocatory members mounted in the guideways and projecting through the cut-away portions, devices secured to the projecting portions and extending beneath the base, said devices moving toward and from each other in the same rectilinear path, a motor mounteu on the base, and connections between the motor and members for effecting their simultaneous reciprocation in opposite directions.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

SWAN F. ANDERSON. Witnesses A. O. BEHEL, E. D. E. N. BEHJEL. 

